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Positive Displacement Pumps

These pumps are often thought of as high-pressure pumps. Their positive displacement of fluid and fixed volume are the result of the fluid being mechanically moved through their pump passage on a regular cycle. This means that regardless of the system they discharge into, the pressure and volume will remain constant. The power of the driving device and its speed, limit the volume and pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to 100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed and fixed volume per cycle, they handle very viscid fluids well.Smaller than centrifugal pumps.Quiet, do not ad much heat to the fluid, suitable for shear sensitive fluids.Diaphragm pumps can easily pass solids, stringy and fibrous foreign matter. Are made in materials from CI to Titanium and PP, PVDF and PPS engineering resins.
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  1. Oberdorfer N991M-J07 N991 Gear PUMP motor

    Oberdorfer Pumps

    N991 Gear PUMP & motor

    N991M-J07
    $1,692.60
    Gear PUMP & motor. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pumps a...

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  2. 316 Stainless Steel Gear pump

    Hypro Pumps

    316 Stainless Steel Gear pump

    GMSV6C3T
    $1,799.44

    Rotary Gear pump with motor. 316 Stainless construction, Ryton gears.

    Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direction reversal. Flush...

    3HP 230/460V TEFC Learn More
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  3. Oberdorfer N994J-W45 N994 Gear Pump Mtr.

    Oberdorfer Pumps

    N994 Gear Pump & Mtr.

    N994J-W45
    $2,593.50
    Gear Pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pumps are pos...

    2HP 115/230 Learn More
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  4. Hypro GMSV6C 316SS Gear pump end only

    Hypro Pumps

    316SS Gear pump end only

    GMSV6C
    $1,593.04

    Rotary Gear pump PEO pump end only. 303 SS fasteners, Ryton gears.

    Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direction reversal. Flush po...

    3HP Learn More
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  5. Oberdorfer N994J-T45 N994 Gear Pump & Mtr.

    Oberdorfer Pumps

    N994 Gear Pump & Mtr.

    N994J-T45
    $2,350.40
    Gear Pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pumps are posit...

    1-1/2Hp 115/230v Learn More
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  6. Oberdorfer 10GB1111S 10 GPM CI GEAR PUMP PED

    Oberdorfer Pumps

    10 GPM CI GEAR PUMP & PED

    10GB1111S
    $1,316.90
    Medium duty CI gear pump with relief valve and pedistal for long coupling. Mechanical sealed, bronze bearings. CW rotation.

    b>Features:

    1. Shafts: Ground and polished steel.
    2. Helical Gears: For quiet running.
    3. Housing: Of close grain cast iron. Three...
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  7. oberdorfer gear pump bronze

    Oberdorfer Pumps

    N994 Gear Pump & Motor

    N994H-J46
    $2,652.00

    Gear Pump, Oberdorfer.

    Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pumps...

    1/2HP 115/230v 1/2" Learn More
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  8. oberdorfer gear pump bronze N994RH-N26

    Oberdorfer Pumps

    N994 Gear Pump & Motor w/Relief Valve

    N994RH-N26
    $3,432.00

    Gear Pump, Oberdorfer.

    Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pumps...

    1HP 115/230v 1/2" Learn More
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  9. ober_n994mtr.jpg

    Oberdorfer Pumps

    N994 Gear Pump & Mtr.

    N994R-N75
    $1,848.60
    Gear Pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pumps are posit...

    12VDC Learn More
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  10. Oberdorfer N994-37 N994 Gear Pump w/brkt

    Oberdorfer Pumps

    N994 Gear Pump w/brkt

    N994-37
    $1,717.30
    Gear Pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Gear Pump KIT. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gea...

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